Brain bleeding associated with lecanemab or donanemab can rarely cause death, while serious brain swelling from these drugs can rarely cause seizures and other symptoms.
Notes on verification
Confirmed by Mayo Clinic, FDA briefing documents, peer-reviewed review, Wikipedia, and Science magazine reporting on clinical trial deaths. Multiple independent, high-quality sources converge. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=1.0 clusters=4 claim_tier=notable]
Sources
- Dementia - Diagnosis and treatment (seed:health_and_medicine)
- https://www.alzheimer-europe.org/news/fda-grants-traditional-approval-donanemab-treatment-early-alzheimers-disease (corroboration)
- https://www.fda.gov/media/169263/download (corroboration)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10834650/ (corroboration)
- https://www.science.org/content/article/scientists-tie-third-clinical-trial-death-experimental-alzheimer-s-drug (corroboration)